Matt inherited as a trust a fifteen-year annuity-immediate with annual payments. He has been told that the annuity payments earn compound interest at a level rate and that at the end of fifteen years, their accumulated value will be $37,807.31. He has further been assured that figured at this same rate of interest, the value of his inheritance was $15,078.70. The trust executor will not reveal the amount of the annual payments. Determine this amount. (Round your answer to the nearest cent.) $ Determine the annual effective interest rate earned by the annuity payments. (Round your answer to two decimal places.) %